Home / 111,081.40-153,296.10-60,780.36

Finding the Fourth Proportional to 111,081.40, 153,296.10 and 60,780.36

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Solution

The fourth proportional to 111,081.40, 153,296.10 and 60,780.36 is: 83,878.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,081.40 : 153,296.10 = 60,780.36 : x
  2. Step 2: Convert to fraction form
    111,081.40/153,296.10 = 60,780.36/x
  3. Step 3: Cross multiply
    111,081.40x = 153,296.10 × 60,780.36
  4. Step 4: Simplify right side
    111,081.40x = 9,317,392,144.60
  5. Step 5: Solve for x
    x = 9,317,392,144.60/111,081.40
  6. Step 6: Final answer
    x = 83,878.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.